/Engine/Source/Runtime/Engine/Classes/Sound/SoundNode.h
Set the entire Child Node array directly, allows GraphNodes to fully control node layout. Can be overwritten to set up additional parameters that are tied to children.
virtual void SetChildNodes ( [TArray](API\Runtime\Core\Containers\TArray)< [USoundNode](API\Runtime\Engine\Sound\USoundNode) * > & InChildNodes )